85236747 has 4 divisors (see below), whose sum is σ = 113649000. Its totient is φ = 56824496.

The previous prime is 85236737. The next prime is 85236779. The reversal of 85236747 is 74763258.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85236747 - 2¹⁴ = 85220363 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 85236699 and 85236708.

It is not an unprimeable number, because it can be changed into a prime (85236727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14206122 + ... + 14206127.

It is an arithmetic number, because the mean of its divisors is an integer number (28412250).

Almost surely, 2^85236747 is an apocalyptic number.

85236747 is a deficient number, since it is larger than the sum of its proper divisors (28412253).

85236747 is a wasteful number, since it uses less digits than its factorization.

85236747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28412252.

The product of its digits is 282240, while the sum is 42.

The square root of 85236747 is about 9232.3749382269. The cubic root of 85236747 is about 440.0907990987.

The spelling of 85236747 in words is "eighty-five million, two hundred thirty-six thousand, seven hundred forty-seven".